11020242420 has 144 divisors (see below), whose sum is σ = 36522420480. Its totient is φ = 2667513600.

The previous prime is 11020242349. The next prime is 11020242437. The reversal of 11020242420 is 2424202011.

11020242420 is a `hidden beast` number, since 1 + 1 + 0 + 2 + 0 + 242 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11020242393 and 11020242402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1419750 + ... + 1427490.

It is an arithmetic number, because the mean of its divisors is an integer number (253627920).

Almost surely, 2^11020242420 is an apocalyptic number.

11020242420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11020242420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18261210240).

11020242420 is an abundant number, since it is smaller than the sum of its proper divisors (25502178060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11020242420 is a wasteful number, since it uses less digits than its factorization.

11020242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8486 (or 8481 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 11020242420 its reverse (2424202011), we get a palindrome (13444444431).

The spelling of 11020242420 in words is "eleven billion, twenty million, two hundred forty-two thousand, four hundred twenty".